简化亚甲基蓝分光光度法测定水中硫化物

To Determine Sulfide in Water Using Simplified Methylene Blue Spectrophotometric Method

对亚甲基蓝分光光度法测定水中硫化物预处理的吹气时间进行了简化实验,并与原方法作了对照,根据测定的精密度和加标回收率的结果,得出可将原方法的吹气时间由25min减少到10min,节省时间,并满足了测定方法规定的质量要求。

Many tests were undertaken for aeration time in pretreatment of sulfide determination using simplified methylene blue spectrophotometric method. This method was compared with other methods. From the accuracy and sampling recovery rate, the aeration time was reduced from 25 min to 10 min. It is timesaving, and conform to the quality demand. 